The purpose of this study was to test the effects of two metacognitive scaffolds on learners' cognition by evaluating student critical thinking skills performance in an asynchronous discussion board and achievement in a blended learning module. The two scaffolds included a systematic protocol for individualized facilitation prompts and an analytic…

While assigning student roles is a popular technique in online discussions, roles and the responsibilities allocated to them have not been consistently assigned. This makes it difficult to compare implementations and generate principled guidance for role design. This study critically examined frequently assigned student roles and identified a set…